What would you guess the aperture range for the non-high-performance standard zoom?

If I were to guess based on what they did in the A-mount world, then they would do something like a 16-80 f/3.5-5.6 or so, with the intention of keeping the size down, in the non-high-performance zoom. The A-mount 16-80 Zeiss has f/4.5 at the long-end but here they might go with f/5.6 to keep the size down.

Please note that the 18-55 kit already exists and thus there is no need to create another cheap zoom....and thus the new zoom would need to be something that can definitely command more money, while going down wider into the 16mm range and longer into the 80mm range.

For the high-performance zoom, they might go with a 16-55 f/2.8 (based on what Canon etc did in their SLR world), which in turn would be larger and heavier than the "non-high-performance" zoom above, but will bring constant f/2.8 to the table.